Press 'h' to toggle the variable view. The variable changes the number of bugs. Press 'space' to toggle the 'bug mode'--one way you can see the costumes, the other way each bug is represented by a dot. Adjust the speed slider to change the speed of the bugs.
A continuation of an experiment I began in another Scratch account. Basically this is a way to get around Scratch's 300 clone limit. This one bug can be stamped on the screen 2000 times! The engine can allow a lot more bugs, but it gets kind of laggy at a certain point. Change log: 6/14/2022: Initial release. I altered the engine to allow for 2000 bugs on screen. I also fixed edge collision and corner fixes. 6/15: Changed slider variable parameters. 6/16: Trimmed some code to make the project run a bit faster. Slider min is now 1 instead of 0. 6/16, part 2: Bug mode implemented. Also shrunk size of bugs. 6/16, part 3: Now the speed of all bugs is constant. Speed can be adjusted via slider. Lots of changes today! I may undo this one, though.